{"product_id":"merc-135","title":"Mercury - Engine Mounting Screw - 10-8M2021918","description":"\u003cp\u003eThe Mercury Quicksilver Engine Mounting Screw 10-8M2021918 is an OEM structural fastener used in select Mercury\/MerCruiser engine mounting applications. This screw is commonly associated with MerCruiser sterndrive engine mounting diagrams, including 3.0L Alpha One style setups, where the correct fastener length and thread pattern are important for secure engine mounting.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury\/Quicksilver engine mounting screw\u003c\/li\u003e\n\u003cli\u003ePart number: 10-8M2021918\u003c\/li\u003e\n\u003cli\u003eAlso referenced as 8M2021918\u003c\/li\u003e\n\u003cli\u003eThread size: 7\/16-14 coarse thread\u003c\/li\u003e\n\u003cli\u003eLength: 4-5\/8\"\u003c\/li\u003e\n\u003cli\u003eListed dimensions: .437-14 x 4.625\"\u003c\/li\u003e\n\u003cli\u003eUsed in select engine mounting and bracket\/cradle assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUsed on select Mercury\/MerCruiser sterndrive engine mounting applications, including MerCruiser 3.0L Alpha One configurations where this screw is shown in the engine mounting parts diagram.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eVerify fitment by engine serial number and mounting diagram before ordering. Engine mounting hardware can vary by engine package, mount style, bracket design, and production range.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace this mounting screw if it is bent, stretched, corroded, stripped, seized, missing, or damaged during engine mount or bracket service.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirm thread size, length, and mounting location before installation. Inspect the mating threads, mount bracket, engine cradle, and surrounding hardware. Use Mercury service procedures for torque requirements and any approved thread treatment.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplaces Mercury 10-32557 and 32557.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eEngine mounting fasteners are not ideal to substitute by length alone. The thread, grade, coating, and exact mounting location all matter because this hardware supports alignment and absorbs engine vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563851972644,"sku":"32557","price":3.89,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/3a01012d-b185-4a0c-af34-a90f7210ecff.png?v=1779397985","url":"https:\/\/marisolmarine.com\/products\/merc-135","provider":"Marisol Marine Company","version":"1.0","type":"link"}